What are three different ways Set Designers demonstrate their ideas for the stage and scenery before taking it to the actual stage??

How to build a cardboard bridge busing no tape or glue only cardboard and only be allowed to cut the cardboard and it has to be a beam bridge?

After first arriving in new york, charlie parker took a job as a dishwasher at jimmy's chicken shack, where played the piano nightly. listening to his astonishing harmonic restructuring, virtuoso phrasing, and breakneck tempos every night for three months, charlie parker challenged himself to adopt these qualities into his playing, and he continued to practice tirelessly.

List as many characteristics as you can to describe each style realism and propaganda